Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Sung-Churl Choi"'
Publikováno v:
Nanomaterials, Vol 11, Iss 11, p 2877 (2021)
Multilayered core–shell Fe3O4-SnO2-C nanoparticles were prepared via surface treatment and carbonization at atmospheric pressure. Fe3O4-SnO2 nanoparticles were prepared by the carboxylation of the pivotal particles (Fe3O4) with an anionic surfactan
Externí odkaz:
https://doaj.org/article/af02ea0433f447498b0e860862b51083
Publikováno v:
Journal of Engineering, Vol 2013 (2013)
Group III nitride semiconductors with direct band gaps have recently become increasingly important in optoelectronics and microelectronics applications due to their direct band gaps, which cover the whole visible spectrum and a large part of the UV r
Externí odkaz:
https://doaj.org/article/7726fea4522b4d318e3095f378ac3d11
Publikováno v:
Journal of Nanoscience and Nanotechnology. 20:6747-6752
Zirconium diboride (ZrB2) is an ultrahigh-temperature ceramic (UHTC) with excellent thermal and mechanical properties. To fabricate a complexly structured UHTC sintered body with high density a high-solid-loading slurry with low viscosity is required
Publikováno v:
Ceramics International. 46:14384-14390
In this study, core–shell-structured Fe3O4@SiO2 nanoparticles were synthesized using sodium silicate (Na2SiO3), which is more suitable for mass production than the conventional silane precursor tetraethyl orthosilicate (TEOS). In the particle-surfa
Publikováno v:
Ceramics International. 46:10723-10728
The superparamagnetic Fe3O4 magnetic nanoparticles have attracted a considerable amount of attention in biomedical fields such as drug delivery, MRI contrast, and hyperthermia treatment. To enable these varied applications of Fe3O4 nanoparticles, it
Publikováno v:
Ceramics International. 46:4870-4877
SiO2–C precursors with various surface areas were derived from tetraethyl orthosilicate and phenolic resin as Si and C sources, respectively, by a modified sol–gel process using the in situ precipitation of phenol resin in a prepared wet gel. The
Publikováno v:
Journal of Ceramic Processing Research. 21:92-98
This work was supported by the Korean Government (Defense Acquisition Program Administration, DAPA) through research institute (Agency for Defense Development, ADD).
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 26:455-462
ZrB2 ceramic and ZrB2 ceramic composites with the addition of SiC, WC, and SiC/WC are successfully synthesized by a spark plasma sintering method. During high-temperature oxidation, SiC additive form a SiO2 amorphous outer scale layer and SiC-deplete
Publikováno v:
Journal of the Korean Ceramic Society. 57:80-84
The dispersibility in an aqueous solution of magnetite nanoparticles was enhanced by appropriate anionic surface treatment. The Fe3O4 nanoparticles were modified with various types of the precursor to include anionic terminal functional groups. The n
Autor:
Jae Rok Shin, Yeon-Gil Jung, Jin Soon Han, Sung Churl Choi, Gye Seok An, Hye Yeong Park, Jae Uk Hur
Publikováno v:
Ceramics International. 45:21395-21400
Core–shell-structured SnO 2 -decorated Fe 3 O 4 nanoparticles were successfully synthesized by a simple solvothermal reaction. We propose an effective approach to decorate SnO 2 on the Fe 3 O 4 surface using trisodium citrate dihydrate (tSCD) and p